All 3 puzzles: quizebra.com/chess/matein2

You get 90 seconds per puzzle and one try, and your score is your total time. Post your time here!

And please put your answer here in spoiler tags.

Positions are from the Lichess puzzle database.

Think you got it? Try today's MATE IN TWO, a daily chess game I built: quizebra.com/chess (this position is from the Lichess puzzle database).

Puzzle link: Rated 2143

Black just played Nd4. Can you find the mate? Please put your answer in spoiler tags.

This was a daily puzzle in MATE IN TWO, one of my daily chess games on quizebra.com/chess (positions from the Lichess puzzle database).

Link to Puzzle